3769/CH19/EX19.8/Ex19_8.sce


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clear
//Given
u=-25.0              //cm
v=-90.0              //cm

//calculation
f=1/((1/v)-1/u)
f1=(1/2.0)*10**2
u=1/((1/v)-1/f1)

//Result
printf("\n (i) focal length is %0.1f  cm",f)
printf("\n (ii) Distance is %0.1f  cm",u)